Pulley.



H. w. MARSH.

PULLEY.

' APPLICATION FILED AUG. 12, 1903.

N0 MODEL.

I III! I Billitnrsscs:

WM 02,, m

PATENTED OCT. 11, 1904.

Patented October 11, 1904.

PATENT OFFICE.

' HARRY W. MARSH, OF FINDLAY, OHIO.

PULLEY.

SPECIFICATION forming part of Letters Patent No. 771,879, dated October11 1904.

Application filed August 12, 1903. Serial No. 169,211. (No model.)

To all whom it may concern..-

Be it known that I, HARRY W. MARSH, acitizen of the UnitedStates,residing at F indlay,in the county of Hancock and State of Ohio,have invented new and useful Improvements in Pulleys, .of which thefollowing is a specification.

My invention relates to improvements in pulleys or sheaves, moreparticularly that class over which are passed ropes or cables; and ithas for its object, among other things, to reduce the weight thereof tothe minimum, to increase the wearing capacity of the same, and wherebythe wearing-surface of such may in a measure be renewed as circumstancessuggest.

The nature of said invention consists of the combination of parts,including their construction'and arrangement, substantially ashereinafter more fully described, and specifically pointed out by theclaim.

In the accompanying drawings, illustrating the preferred embodiment ofmy invention, Figure 1 is a section thereof with the removable plate andrim or core omitted, taken on the line a a of Fig. 2, disclosing moreespecially the alternating lugs or projections upon the lateral circularmembers. Fig. 2 is a transverse section taken on the line w m of Fig. 1.Fig. 3 is a similar section taken on the line 2 z of Fig. 1, showingmore particularly one of the lugs or projections aforesaid.

In carrying out my invention I produce the pulley 1, preferably of aprincipal disk-like member or part 1 the shaft 2, carrying the same,being preferably cast or in one piece therewith. Said member or part hasan integral enlargement or shoulder 1 at its outer circular edge uponwhich is slipped or fitted a leather or rubber rim or core 3, forming abearing or Wearing surface for a rope or cable (not shown) passing incontact therewith, which, it is obvious, can be readily renewed whenunduly worn by substituting a like part therefor, and thus increasedurability. An annulus or ring 4 is arranged or adapted to be fittedupon the shoulder or enlargement 1 of the part P, which parallels acorresponding offset portion 4 of said shoulder and combines therewithto clamp or secure said leather or rubber core laterally in place, saidannulus or ring 4 being held thereto preferably by suitable bolts passedthrough holes formed in said annulus and said offset portion 4. Saidannulus and ofiset portion are formed upon their facing surfaces withlugs or projections 6, alternating each other and which are designed topass through said core or rim to prevent the radial displacement of saidcore or rim by the impingement or friction of the cable or Also in lieuof passing the lugs or projections 6 through said core the bolts abovenoted, connecting the annulus or ring to said offset portion of theprincipal part or member of the pulley, may be passed through said coreor ring.

The additional advantage of lightness as well as che'apness ofconstruction is apparent from the aforesaid combination and arrangementof parts.

It will be understood that latitude is allowed herein as to details, asthey may be changed at pleasure without departing from the spirit of myinvention and said invention still be protected.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

A pulley comprising a body portion having an integral ofiset peripheralextension, itself having integral lateral lugs or projections, anannulus having also external lateral lugs or projections and fittingupon the periphery of said body portion, and a fibrous rim or coreencompassing said periphery, intermediately of said peripheral extensionand annulus,the lugs or projections of said latter parts alternatingeach other and extending in opposite directions through said rim, withtheir free ends abutting or engaging said annulus and extension,respectively, thus securing said rim, throughout its entirecross-sectional area and at close intervals to said annulus andextension.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

HARRY W. MARSH. Witnesses:

T.' GLEN CARPENTER, J ESTON WARNER.

rope coming in contact therewith.

